GeTe7As4

ceramic

· JVASP-10265· GeTe7As4

GeTe7As4 is a chalcogenide ceramic compound belonging to the germanium telluride-arsenic family, materials known for their unique electronic and thermal properties in the solid-state physics domain. This composition falls within the category of phase-change materials and amorphous semiconductors that have attracted research interest for memory devices, thermal management applications, and infrared optics. The material's selection would be driven by specific requirements for non-volatile switching behavior, thermal stability, or optical transparency in the infrared spectrum where conventional glasses and ceramics are limited.

phase-change memory devicesinfrared optics and windowsthermal interface materialsresearch semiconductorsnonvolatile data storagethermochromic applications

Compliance & Regulations

?ITAR?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2203	lb/in³	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Filter by

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.3550	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	76.77	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	0.03333	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.03333	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00430	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00207	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-256.7	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	196.2	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.00670	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.02105	eV/atom	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

Regulatory Screening

Environmental

Export Control

Quality & Standards

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.

GeTe7As4 — Properties & Data | MatWorld

GeTe7As4

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control

Quality & Standards